The "frown" orientation makes the most sense to me. Why? The largest radius should be able to handle the most load with the least amount of wear and have the smoothest operation.

Yes, I hear you. How does that matter here? It might not. It certainly only has a chance of mattering during the mounting and unmounting process.

When you mount and unmount the steering wheel, odds are the tires will be facing straight ahead. It's possible that there will be some downward pressure
applied to the top of the "frown". The top of the "frown" with one larger point of contact can handle that load better and more smoothly than the top of the "smile" which has two smaller points of contact, one of which may not be in contact and not sharing the load.

You can feel this for yourself as you mount the steering wheel with the release mechanism pulled it so the retaining pins are retracted by slightly turning the steering wheel while it rests on the "frown" or "smile".

By the way, those of you will the Rothsport quick release, when you mount the steering wheel, do you pull in the release mechanism? I know it is designed so that is not necessary, but I am curious.

Scott

 

Scott:
The Spec Box I have raced has the Rothsport release, my own car has a Lifeline. Out of habit, I pull the ring back when in the Boxster, but I don't think it is necessary. Can't see why it would hurt either way.

 

Upon considering this now I may also prefer the frown for a whole new reason. Technically the smile could hold something in it,dirt,rock, etc, thus not allowing a total engagement. While the frown it would most likely fall off of.

As for the other issues you state Scott, with the tapered male piece I would think the load would be evenly distrubuted.

I too pull out of habit just as Carrera51 does. Then I always tug hard after engaged to be sure it is totally engaged. Old habits are hard to die.

 

Yes, but bad habits die quickly.

 

True!!

Yes, but you are assuming that the engagement is perfect and one part of the tapered surface does not make contact first. That's not likely to happen in real life....

Yes, I plan on making that part of my routine....

Scott

 

Watch from 6:33 on.
He never lifts AND still gets the shift in, nice !

http://www.youtube.com/watch?v=kvNyl...embedded#at=21

 

You guys are making me very nervous about my quick release!

 

It probably make no difference at all. If it did, I am sure that Rothsport would include some instructions. I just received mine from them with no instructions.

Regardless, you could remount with a "frown" or a "smile" in about 5 minutes....

Scott

 

I guess mine is more like this:


: )

 

You Boxster guys.

 

Boxster guys, Indeed!!

It's actually more like this:

( :

Scott

 

Never did find one I liked all around. Some were nice and tight some were dead simple to install and remove but all left the hub extension on the steering shaft. This sticks out in the way during entry and exit. I ended up just making one that is 100% locked in or not, no middle ground. The pins drop in and can be see by the driver in locked or not locked position. you can't set the wheel in place without the pins not dropping in and if they are held out the wheel will not stay put. I have seen 3 of track event from wheels coming off. One totaled a very nice full track 914/6.

 

As always, very nice work.

 

Well despite my and everyone else's better judgment I bought and installed the Snap-Off. It comes w/ a horn adapter but you don't need it w/ a 993RS Momo steering wheel.

The only issue was the inner lip of the Momo horn adapter ring, it had a ridge that needed to be ground flat to fit.

Here's hoping that this works out ok.